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New Manchester United manager Louis van Gaal insists every member of the current squad has the chance to be part of his plans.

But their futures will depend on how quickly and how well they can adapt to the Dutchman's philosophy.

Having failed to qualify for the Champions League for the first time in 18 years last season, many have questioned whether the first-team is in need of a complete overhaul.

But the 62-year-old says they will all have time before he decides whether to bring in new players.

Louis van Gaal explains his managerial philosophies during his first press conference as Manchester United boss.

“My method is always the same. I want to look at the players now, who are here at present,” he said.

“Of course I know how the players play but I don’t know how the players play once I have trained and coached them. The first three, four weeks I want to see what they can do and then maybe I will buy more players.

“The players we have bought already, such as Ander Herrera, were already on the list. I gave them my approval because I like them, but first I want to see the players performing my philosophy.

Louis van Gaal says his method is always to focus on the present players and not look to buy new players for three or four weeks.

“I have to see how quick they can pick up my philosophy and then I can answer what our goal is – I haven’t worked with most of them yet. It is very important there is a click between the players and the manager.”

United have so far signed England left-back Luke Shaw and young goalkeeper Vanja Milinkovic, along with exciting Spanish midfielder Herrera.

But with Vidic transferred to Internazionale, another subject for debate is who Van Gaal will make club captain, with fellow Dutchman Robin van Persie, Wayne Rooney and Patrice Evra all to have adorned the armband.

“All the players are a possible candidate for the captaincy. Therefore I will use the next five or six weeks to decide,” Van Gaal said.

He underwent an operation on his left ankle on Thursday morning but could miss the first two months of the season.

Carrick was left out of England's World Cup squad this summer, but appears to be a key part of Van Gaal's plans, with the Dutchman's comments on the nature of "experience" painting him as an admirer of the midfielder's mindset as well as his technical skills.

Asked about the importance of an experienced player like Wayne Rooney, Van Gaal said: "You have to know that I'm not always convinced of the experience of players.

"Michael Carrick was injured a day or two ago so that's a big blow, because he is an experienced player.

"It's very important that we have experienced players, but not only in age, not only in football, but also experience as human beings.

"My philosophy is not only the football player but also in total - and then there are not so many 'experienced' players."